Coal bed gas flow conveying control device
By introducing anti-backflow, rate control, and pressure relief structures into the coalbed methane flow transmission control device, the problems of backflow and instability of gas flow have been solved, achieving stable and efficient coalbed methane transmission and improved safety.
Patent Information
- Application Number
- CN202422726815.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Existing coalbed methane flow transmission control devices lack effective anti-reverse structures, leading to backflow of gas flow, which affects transmission efficiency and safety. At the same time, the lack of efficient rate control and pressure relief structures results in instability and potential equipment damage risks.
It adopts a reverse flow prevention structure, a rate control structure, and a pressure relief structure. Through the reverse flow prevention component, the rotating support rod, and the pressure relief adjustment component, it realizes the unidirectional flow of air, stable rate control, and pressure release, ensuring the stability and safety of airflow delivery.
It improves the efficiency and safety of coalbed methane transportation, reduces the risk of gas leakage and equipment damage, optimizes the stability of airflow and the service life of equipment, and ensures the efficient utilization of coalbed methane.
Smart Images
Figure CN223782676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coalbed methane flow transportation technology, and in particular to a coalbed methane flow transportation control device. Background Technology
[0002] A coalbed methane flow control device is a piece of equipment used to manage and regulate the flow of coalbed methane from the mining site to the use or storage site. This device typically includes a pressure vessel to temporarily store and buffer pressure fluctuations in the coalbed methane, ensuring that the gas is delivered in a stable and controllable manner. It is then delivered to the appropriate location via a series of valves, flow meters, and other control elements.
[0003] In the existing technology, the design of coalbed methane flow transmission control devices has obvious defects, especially in preventing backflow. This device fails to effectively integrate a backflow prevention structure during the coalbed methane transmission process, which leads to backflow in some cases. Backflow not only reduces the transmission efficiency of coalbed methane but also causes potential damage to the equipment. At the same time, this lack of backflow prevention structure also increases safety hazards, leading to the risk of gas leakage, pollution, or other serious accidents. In addition, due to the instability of coalbed methane flow rate, the performance of the device is affected, and continuous and efficient gas transmission cannot be ensured. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coalbed methane flow transmission control device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coalbed methane flow transmission control device, comprising a control device body, an air inlet channel being provided inside one end of the control device body, an air outlet channel being provided inside the other end of the control device body, the air inlet channel and the air outlet channel being interconnected, a protective component shell being connected to one end of the control device body, an air inlet connection hole being provided at one end of the protective component shell, a reverse blocking component being slidably connected to the inner wall of the protective component shell, a gas cavity being provided inside the reverse blocking component, an air outlet being provided on the inner wall of the gas cavity, a limit ring being fixed on one side of the reverse blocking component, a spring being fixed on the other side of the reverse blocking component, and the other end of the spring being fixed to the inner wall of the protective component shell.
[0006] Preferably, the control device body has a control cavity inside, which is interconnected with the air inlet channel and the air outlet channel. A rotating support rod is rotatably connected to the inner wall of the control cavity. An adjustment knob is fixed to the bottom of the rotating support rod. A support column is rotatably connected to the surface of the rotating support rod and is fixed to the inner wall of the control cavity. A control component is fixed to the surface of the rotating support rod. The surface of the control component is in contact with the inner wall of the control cavity. A third guide hole, a fourth guide hole, a first guide hole, and a second guide hole are all connected to the top of the control component. The diameters of the third, fourth, first, and second guide holes are all different. In existing technologies, the lack of an efficient rate control mechanism in coalbed methane flow transmission control devices is a significant shortcoming. This deficiency leads to poor airflow transmission stability, which in turn affects the effective collection and utilization of coalbed methane. Because the equipment cannot flexibly adjust the airflow rate according to different operating conditions, over- or under-transmission often occurs, resulting in unnecessary energy waste. Furthermore, inaccurate flow control can cause a series of safety hazards, such as gas accumulation or obstructed flow, thereby increasing the risk of equipment failure. Especially in high-intensity collection environments, unstable airflow not only affects production efficiency but also causes equipment to operate under overload, shortening its service life. To address these issues, this invention employs a rate control... The structure allows for rate control. When rate control is required, rotating the adjustment knob connects the four guide holes (third, fourth, first, and fourth) of different diameters to the gas outlet channel, thus controlling the delivery rate. This significantly improves the stability of gas flow, optimizing the collection and utilization efficiency of coalbed methane. Flexible adjustment of the gas flow rate effectively avoids excessive or insufficient delivery, reducing energy waste and mitigating the risks of gas accumulation and poor flow, enhancing overall safety. In high-intensity collection environments, stable gas flow not only improves production efficiency but also effectively reduces equipment overload and extends its service life, providing a reliable guarantee for the efficient utilization of coalbed methane.
[0007] Preferably, a pressure relief adjustment component is threadedly connected to the surface of the main body of the control device, a sealing element is fixed on the top of the pressure relief adjustment component, and a pressure relief hole is provided through the surface of the main body of the control device to the air outlet channel, and the pressure relief hole is connected to the air outlet channel. In existing technologies, coalbed methane flow transmission control devices generally lack effective pressure relief structures. This drawback can lead to system malfunctions or dangers under high-pressure environments. In practical applications, the extraction and transmission of coalbed methane often encounters pressure fluctuations. Devices without pressure relief mechanisms cannot release excess pressure in a timely manner, increasing the risk of explosions or equipment damage. Furthermore, the lack of a pressure relief device also affects the stability of airflow, leading to uneven airflow transmission. To address these issues, this invention employs a pressure relief structure. When pressure relief is required during transmission, rotating the pressure relief adjustment component disengages the seal from the pressure relief hole, connecting the pressure relief hole to the outlet channel, thus achieving pressure relief. This allows the coalbed methane flow transmission control device to release excess pressure in a timely manner under high-pressure environments, effectively preventing system malfunctions and potential explosion risks. This improvement not only ensures the safety and reliability of the equipment but also stabilizes the airflow, improves transmission efficiency, and achieves more uniform coalbed methane extraction, thereby significantly improving the comprehensive utilization of coalbed methane resources.
[0008] Preferably, a control indicator is provided at the bottom of the main body of the control device, and an indicator arrow is provided at the bottom of the adjustment knob. The control indicator can prompt the user to switch between different speeds, thereby improving conveying efficiency and quality.
[0009] Preferably, the support column is threaded to the inner wall of the control cavity, and a sealing strip is provided at the thread. The threaded connection of the support column allows for easy replacement of internal parts in case of damage, and the sealing strip improves the airtightness of the device.
[0010] Preferably, the adjustment knob has an array of anti-slip grooves on its surface. These grooves make adjusting the knob easier and less strenuous for the user.
[0011] Preferably, a pressure gauge is threadedly connected to the top of the control device body. The pressure gauge enables real-time monitoring of gas pressure, thereby ensuring the safe operation of the equipment, timely detection of abnormalities and implementation of measures, optimizing system performance, and improving operational convenience through easy installation and maintenance design.
[0012] Beneficial effects:
[0013] 1. Existing coalbed methane flow control devices have significant design flaws, particularly in preventing backflow. These devices fail to effectively integrate a backflow prevention structure during coalbed methane transport, leading to backflow under certain circumstances. Backflow not only reduces coalbed methane transport efficiency but also causes potential equipment damage. Furthermore, the lack of a backflow prevention structure increases safety hazards, potentially leading to gas leaks, pollution, or other serious accidents. Additionally, the instability of coalbed methane flow affects device performance, hindering continuous and efficient gas transport. To address these issues, this invention employs a backflow prevention structure to enhance unidirectional airflow. By optimizing the device design, stable airflow transport is achieved, thereby improving coalbed methane transport efficiency, reducing equipment damage and safety hazards caused by backflow, and lowering the risk of gas leaks and pollution. Moreover, advanced flow control technology is used to precisely regulate the coalbed methane flow, ensuring continuous and efficient gas transport, thus enhancing the overall system's stability and safety.
[0014] 2. In existing technologies, the lack of an efficient rate control mechanism in coalbed methane flow transmission control devices is a significant shortcoming. This deficiency leads to poor stability in airflow transmission, which in turn affects the effective collection and utilization of coalbed methane. Because the equipment cannot flexibly adjust the airflow rate according to different operating conditions, excessive or insufficient transmission often occurs, resulting in unnecessary energy waste. In addition, inaccurate flow control can also cause a series of safety hazards, such as gas accumulation or poor flow, thereby increasing the risk of equipment failure. Especially in high-intensity collection environments, unstable airflow not only affects production efficiency but also causes equipment to operate under overload, shortening its service life. To address these issues, this utility model adopts a rate control structure to significantly improve the stability of airflow transmission, thereby optimizing the collection and utilization efficiency of coalbed methane. Flexible adjustment of the airflow rate will effectively avoid excessive or insufficient transmission, reduce energy waste, and reduce the risk of gas accumulation and poor flow, enhancing overall safety. In high-intensity collection environments, stable airflow can not only improve production efficiency but also effectively reduce equipment overload and extend its service life, thus providing a reliable guarantee for the efficient utilization of coalbed methane.
[0015] 3. In existing technologies, coalbed methane flow transmission control devices generally lack effective pressure relief structures. This drawback can lead to system malfunctions or dangers under high-pressure environments. In practical applications, the extraction and transmission of coalbed methane often encounters pressure fluctuations. Devices without pressure relief mechanisms cannot release excess pressure in time, increasing the risk of explosions or equipment damage. Furthermore, the lack of pressure relief devices also affects the stability of airflow, resulting in uneven airflow transmission. To address these issues, this invention adopts a pressure relief structure, enabling the coalbed methane flow transmission control device to release excess pressure in a timely manner under high-pressure environments, effectively preventing system malfunctions and potential explosion risks. This improvement not only ensures the safety and reliability of the equipment but also stabilizes the airflow, improves transmission efficiency, and achieves more uniform coalbed methane extraction, thereby significantly improving the comprehensive utilization of coalbed methane resources. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a cross-sectional view of the present invention;
[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.
[0019] Legend:
[0020] 1. Control device main body; 101. Air inlet channel; 102. Air outlet channel; 103. Control cavity; 104. Protective component housing; 105. Air inlet connection hole; 106. Reverse blocking component; 107. Air outlet; 108. Limiting ring; 109. Spring; 110. Gas cavity; 2. Control component; 201. Rotating support rod; 202. Adjustment knob; 203. Third guide hole; 204. Fourth guide hole; 205. First guide hole; 206. Second guide hole; 207. Anti-slip groove; 208. Indicating arrow; 209. Control indicator; 210. Support column; 3. Pressure relief adjustment component; 301. Pressure relief hole; 302. Pressure gauge; 303. Seal. Detailed Implementation
[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0022] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific implementation examples:
[0024] Reference Figure 1-3 A coalbed methane flow transmission control device includes a control device body 1. An air inlet channel 101 is provided inside one end of the control device body 1, and an air outlet channel 102 is provided inside the other end of the control device body 1. The air inlet channel 101 and the air outlet channel 102 are interconnected. A protective component housing 104 is connected to one end of the control device body 1. An air inlet connection hole 105 is provided at one end of the protective component housing 104. A reverse blocking component 106 is slidably connected to the inner wall of the protective component housing 104. A gas cavity 110 is provided inside the reverse blocking component 106, and an air outlet hole 107 is provided on the inner wall of the gas cavity 110. A limit ring 108 is fixed to one side of the reverse blocking component 106, and a spring 109 is fixed to the other side of the reverse blocking component 106. The other end of the spring 109 is fixed to the inner wall of the protective component housing 104. In existing technologies, the design of coalbed methane flow control devices has significant flaws, particularly in preventing backflow. These devices fail to effectively integrate a backflow prevention structure during coalbed methane transport, leading to backflow under certain circumstances. Backflow not only reduces transport efficiency but also poses potential damage to the equipment. Furthermore, the lack of a backflow prevention structure increases safety hazards, increasing the risk of gas leaks, pollution, or other serious accidents. Additionally, the instability of coalbed methane flow affects device performance, hindering continuous and efficient gas transport. To address these issues, this invention employs a backflow prevention structure. During transport operations, the transport end is connected to the inlet connection hole 105. After opening the corresponding transport valve, coalbed methane... The gas enters the gas chamber 110. Under pressure, the reverse gas blocking component 106 moves forward. After reaching a certain point, the gas is transported from the outlet 107. When the gas pressure decreases, the reverse gas blocking component 106 rebounds under the action of the spring 109 and is sealed by the limit ring 108. The outlet 107 is also sealed due to the fit, thus achieving reverse gas blocking and enhancing the unidirectional flow of the gas. By optimizing the device design, stable gas flow is achieved, thereby improving the transport efficiency of coalbed methane, reducing equipment damage and safety hazards caused by backflow, and reducing the risk of gas leakage and pollution. In addition, advanced flow control technology is used to precisely adjust the coalbed methane flow rate to ensure continuous and efficient gas transport, thereby improving the stability and safety of the overall system.
[0025] The main body 1 of the control device has a control cavity 103 inside, which is connected to the air inlet channel 101 and the air outlet channel 102. A rotating support rod 201 is rotatably connected to the inner wall of the control cavity 103. An adjustment knob 202 is fixed at the bottom of the rotating support rod 201. A support column 210 is rotatably connected to the surface of the rotating support rod 201 and is fixed to the inner wall of the control cavity 103. A control component 2 is fixed to the surface of the rotating support rod 201 and fits against the inner wall of the control cavity 103. A third guide hole 203, a fourth guide hole 204, a first guide hole 205, and a second guide hole 206 are all connected from the surface to the top of the control component 2. The diameters of the third guide hole 203, the fourth guide hole 204, the first guide hole 205, and the second guide hole 206 are all different. In existing technologies, the lack of an efficient rate control mechanism in coalbed methane flow transmission control devices is a significant shortcoming. This deficiency leads to poor airflow stability, which in turn affects the effective collection and utilization of coalbed methane. Because the equipment cannot flexibly adjust the airflow rate according to different operating conditions, over- or under-transmission often occurs, resulting in unnecessary energy waste. Furthermore, inaccurate flow control can cause a series of safety hazards, such as gas accumulation or obstructed flow, increasing the risk of equipment failure. Especially in high-intensity collection environments, unstable airflow not only affects production efficiency but also causes equipment to operate under overload, shortening its service life. To address these issues, this invention adopts a rate control structure. When it is necessary to perform… During rate control, rotating the adjustment knob 202 connects the four different diameter third guide holes 203, fourth guide holes 204, first guide holes 205, and fourth guide holes 204 with the gas outlet channel 102, thereby controlling the delivery rate and significantly improving the stability of gas flow. This optimizes the collection and utilization efficiency of coalbed methane. Flexible adjustment of the gas flow rate effectively avoids excessive or insufficient delivery, reduces energy waste, and lowers the risk of gas accumulation and poor flow, enhancing overall safety. In high-intensity collection environments, stable gas flow not only improves production efficiency but also effectively reduces equipment overload operation and extends its service life, thus providing a reliable guarantee for the efficient utilization of coalbed methane.
[0026] The control device body 1 is threadedly connected to a pressure relief adjustment component 3. A sealing element 303 is fixed on the top of the pressure relief adjustment component 3. A pressure relief hole 301 is provided through the control device body 1 to the air outlet channel 102. The pressure relief hole 301 is connected to the air outlet channel 102. In existing technologies, coalbed methane flow transmission control devices generally lack effective pressure relief structures. This drawback can lead to system malfunctions or dangers under high-pressure environments. In practical applications, the extraction and transmission of coalbed methane often encounters pressure fluctuations. Devices without pressure relief mechanisms cannot release excess pressure in time, increasing the risk of explosions or equipment damage. Furthermore, the lack of a pressure relief device also affects the stability of the airflow, resulting in uneven airflow transmission. To address these issues, this invention employs a pressure relief structure. When pressure relief is required during transmission, rotating the pressure relief adjustment component 3 disengages the seal 303 from the pressure relief hole 301, connecting the pressure relief hole 301 to the outlet channel 102, thus achieving pressure relief. This allows the coalbed methane flow transmission control device to release excess pressure in a high-pressure environment, effectively preventing system malfunctions and potential explosion risks. This improvement not only ensures the safety and reliability of the equipment but also stabilizes the airflow, improves transmission efficiency, and achieves more uniform coalbed methane extraction, thereby significantly improving the comprehensive utilization of coalbed methane resources.
[0027] The control device body 1 has a control indicator 209 at its bottom and an indicator arrow 208 at its bottom. The control indicator prompts the user to switch between different speeds to improve conveying efficiency and quality. A support column 210 is threaded to the inner wall of the control cavity 103, and a sealing strip is provided at the thread. The threaded connection of the support column allows for easy replacement of damaged internal parts, and the sealing strip improves the airtightness of the device. The adjustment knob 202 has an array of anti-slip grooves 207 on its surface. These grooves make adjusting the knob easier and less strenuous for the user. A pressure gauge 302 is threaded to the top of the control device body 1. The pressure gauge enables real-time monitoring of gas pressure, ensuring safe operation of the equipment, timely detection of abnormalities and implementation of measures, optimization of system performance, and improved operational convenience through easy installation and maintenance design.
[0028] The working principle of this utility model is as follows: During conveying operations, the conveying end is connected to the air inlet connection hole 105. After opening the corresponding conveying valve, coalbed methane enters the gas chamber 110. Under pressure, the reverse-pressure component 106 moves forward. After reaching a certain position, the gas is conveyed from the air outlet 107. When the gas pressure decreases, the reverse-pressure component 106 rebounds under the action of the spring 109 and seals under the action of the limit ring 108. The air outlet 107 is also sealed due to the fit, thus... To achieve the reverse resistance effect, when it is necessary to control the conveying speed, the adjustment knob 202 can be rotated to connect one of the four different diameter third guide holes 203, fourth guide holes 204, first guide holes 205 and second guide holes 206 to the air outlet channel 102, thereby realizing the control of the conveying speed. If pressure relief is required during the conveying process, the pressure relief adjustment component 3 can be rotated to make the seal 303 no longer fit with the pressure relief hole 301, thereby connecting the pressure relief hole 301 with the air outlet channel 102, thus realizing the pressure relief function.
[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A coalbed methane flow transmission control device, comprising a control device body (1), wherein an air inlet channel (101) is provided inside one end of the control device body (1), and an air outlet channel (102) is provided inside the other end of the control device body (1), wherein the air inlet channel (101) and the air outlet channel (102) are interconnected, characterized in that: The main body (1) of the control device is connected to a protective component housing (104) at one end. An air inlet connection hole (105) is opened at one end of the protective component housing (104). A reverse blocking component (106) is slidably connected to the inner wall of the protective component housing (104). A gas chamber (110) is opened inside the reverse blocking component (106). An air outlet hole (107) is opened on the inner wall of the gas chamber (110). A limit ring (108) is fixed on one side of the reverse blocking component (106). A spring (109) is fixed on the other side of the reverse blocking component (106). The other end of the spring (109) is fixed to the inner wall of the protective component housing (104).
2. The coalbed methane flow transmission control device according to claim 1, characterized in that: The main body (1) of the control device has a control cavity (103) inside. The control cavity (103) is interconnected with the air inlet channel (101) and the air outlet channel (102). A rotating support rod (201) is rotatably connected to the inner wall of the control cavity (103). An adjustment knob (202) is fixed at the bottom of the rotating support rod (201). A support column (210) is rotatably connected to the surface of the rotating support rod (201). The support column (210) is fixed to the inner wall of the control cavity (103). The surface of the rotating support rod (201) is fixed to the inner wall of the control cavity (103). A control component (2) is provided. The surface of the control component (2) is in contact with the inner wall of the control cavity (103). A third guide hole (203) is provided from the surface of the control component (2) to the top. A fourth guide hole (204) is provided from the surface of the control component (2) to the top. A first guide hole (205) is provided from the surface of the control component (2) to the top. A second guide hole (206) is provided from the surface of the control component (2) to the top. The diameters of the third guide hole (203), the fourth guide hole (204), the first guide hole (205), and the second guide hole (206) are all different.
3. The coalbed methane flow transmission control device according to claim 1, characterized in that: The control device body (1) is threadedly connected to a pressure relief adjustment component (3), and a sealing element (303) is fixed on the top of the pressure relief adjustment component (3). A pressure relief hole (301) is provided through the control device body (1) to the air outlet channel (102), and the pressure relief hole (301) is connected to the air outlet channel (102).
4. The coalbed methane flow transmission control device according to claim 2, characterized in that: The control device body (1) has a control prompt label (209) at the bottom, and the adjustment knob (202) has an indicator arrow (208) at the bottom.
5. The coalbed methane flow transmission control device according to claim 2, characterized in that: The support column (210) is threaded to the inner wall of the control cavity (103), and a sealing strip is provided at the thread.
6. The coalbed methane flow transmission control device according to claim 2, characterized in that: The adjustment knob (202) has anti-slip grooves (207) arranged on its surface.
7. The coalbed methane flow transmission control device according to claim 1, characterized in that: A pressure gauge (302) is threadedly connected to the top of the main body (1) of the control device.